USWE Race 2. 0 2L XS Hydration Pack No weight. No bounce. No excuses. USWE changed the game of MTB race hydration with the Outlander PRO, and the Race 2. 0 takes it further. Built from the ground up as a true race pack, it's USWE's lightest creation yet - 230g without the bladder - with an ultralight mesh-membrane backplate and fixed harness that maximize airflow without sacrificing stability. The aerodynamic shape has been wind-tunnel tested and proven to actually improve aerodynamics over wearing no pack at all. The XS fit is purpose-built for smaller-statured riders who want the same race-ready performance in a dialed, proportional fit. Includes a 2. 0L Elite Hydration Bladder and insulated sleeve to keep fluids cool when the race heats up. Features No Dancing Monkey(TM) 1. 0 PRO harness system - USWE's patented 4-point performance suspension locks the pack tight to your back, eliminating bounce and side-to-side movement so you can focus on riding, not managing your pack Ultralight mesh-membrane backplate and fixed harness constructed with 3D breathable mesh and a silicone print to maximize airflow and keep the pack stable - USWE's most breathable design yet Wind-tunnel proven aerodynamics - the shape of the Race 2. 0 has been independently tested and shown to have a positive effect on aerodynamics, actually improving on wearing no pack Included insulated bladder sleeve weighing just 25g keeps your hydration cool far longer on hot race days; skip the sleeve and fill the bladder with ice for an on-body cooling effect2. 0L Elite Hydration Bladder with Plug-n-Play coupling included, with an updated mouthpiece for improved flow and easier use mid-ride XS-specific fit designed and proportioned for smaller riders Recycled ocean plastic main fabric with a PFAS-free DWR treatment - the Race 2. 0 performs and does its part for the planet at the same time SPECIFICATIONSPack Weight230g (excl. bladder and bladder sleeve)Pack Volume2 LDimensions32 x 16 x 9 cm Hydration Capacity2. 0 L / 70 oz Bladder Elite Hydration Bladder with Plug-n-Play Coupling Harness NDM 1. 0 PRO - 4-point performance suspension Shell Fabric Recycled ocean plastic polyester with PFAS-free DWR treatment Intended Use XC Racing, Gravel Racing, Trail Riding | Uswe | Race 2. 0 Xs Hydration Pack White | Polyester